I finally got tired of googling my own forum posts to find my formulas, so I put together a pretty basic calculator for estimating batch-sparging efficiency. It really only does one thing, but it should do it pretty well. Reality checks are always appreciated. Any feedback or requests, let me know.

Any way to take mash efficiency into account? You assume 100%, I'm usually around 96-98%.

You could just knock a bit off the potential extract field, to 74% or so. I typically plug in 73% (~94% conversion efficiency) to give myself some wiggle room, then dilute in the kettle if I'm more than a few points off.

Any way to take mash efficiency into account? You assume 100%, I'm usually around 96-98%.

You could just knock a bit off the potential extract field, to 74% or so. I typically plug in 73% (~94% conversion efficiency) to give myself some wiggle room, then dilute in the kettle if I'm more than a few points off.

Nice. I am going to have to actually measure the fluid left in the grist (not absorbed) after run off to get a reliable figure for the lauter dead space, otherwise it looks like a ready addition to the brewing arsenal. Can't wait to give it a try! Thanks, Sean.